Well pumping and pulling device.



No. 853,180. PATBNTED MAY 7, 1907.

S. LIPPERT. WELL PUMPING AND PULLING DEVICE.

APPLICATION FILED MAY 15, 1905. Q

3 SHEETS-SHEET 2 r I mqggsmul-Il mmm L PATENTED MAY '7, 1907.

S. LIPPERT. WELL PUMPING AND PULLING DEVICE.

APPLICATION FILED MAY 15, 1905.

3 SHBBTB'SHEET 3.

UNITED' STATES P TENT. rrio.

SA'MUEL LIPPERT, OF CLEVELAND, OHIO.

WELL PUMPING PULLING DEVICE.

Specification of Letters Patent.

Patented May 7, 1907.

Application filed May 15, 1905. Serial No. 260.369.

The object of the invention is to erate all, or any one or more of a large num er of wells, in a given locality, by working the pumps at or in such wells, by means of individual motors operated by electricity from one or more sources of power, at points in such locality where the electric current can be most conveniently generated; whereby any one or more of such wells can be operated separately or in connection with any or all such wells at any time, and from time to time and each well can be operated independently at such time and for such periods as may be necessary or expedient with or without requiring the operation of any other well in such locality, and without in any way interfering with the operation of any other well in such locality, and the wells operated from a single source of power are limited in number only by the amount of power generated, and in location only by the distance to which the electric current can be transmitted irrespective of the broken, rugged or mountainous characterof-the country.

The invention is articularly applicable to a the pumping of we s in oil fields, where in a rugged country they could only be pumped singly or in very small numbers and in a level country not more than twenty or thirty wells can be operated from one source of power.

In the resent system the pumping devices in a fiel of oil wells, are all connected together and a sufficient number of wells must be operated at once and kept in connection by shackle rods with the ower to balance it in all directions. Againi awell is too far removed from the source of power it must be abandoned until the power, which is of a mechanical kind can be moved nearer toit, for the reason that sufiicient lost motion is caused to prevent o crating the distant wellsj On account of t 's objection, hundreds of good producing wells have been abandoned.

In a field of oil wells a large number of them are only fair producers, and to operate economically, it is necessary that all the Wells should be pumped simultaneously to obtain a maximum production of oil, and requisite balance of power, which is difficult to provide for by purely mechanical means, with widely scattered Wells. Furthermore mechanical connections between the wells distributed over the surface of the ground, greatly interfere with farming operations and with shackle rod posts 16 or 20 feet apart, cover the available tillage surface.

My invention is these objectionable features and by means of .utilizing the electric current as a motive ower and an individual motor device for each well, to accom lish more than can be done in a mechanica wa without disturbing or encumbering the and for farm uses. The further objectionable features of great waste of power absorbed infliction, and unneeessa mechanical connections extending from wel to well over the ground, are also avoided, and greater efliciency and practicability obtained at lessexpense in material.

designed to overcome all and labor, than by mechanically connected devices. I also obtain these advantagesby means of an electrically o erated motor for each well, and automatical y operating apparatus driven by the motor which can be readily applied to the pum rod and easing of an ordinary oil well, wit comparatively little change of the permanent parts already installed in place.

The invention consists in the driving gears, adapted to give a longitudinal movement to the pump rod or polish rod and in the various devices for changing a direct to a reciprocating movement thereof and in the combination and arrangement of parts and construction of details as hereinafter described, shown in the accompanying drawings and specifically pointed out in the claims.

In the accompanying drawings Figure 1 is a vertical elevation in section of the casing head of a well, showing an end view of the miter change gears, and o crating nut and pinion, and screw thleade sleeve upon the polish rod, and also the shifting red by means of which a reci rocatin movement is obtainedfor the polis rod; Flg. 2 is a similar elevation showing a side view of miter change gears, the motor and motor shaft, and end view of hoisting drum; Fig. 3 is a detail vertical section on line of vertical driving shaft, showing shifting rod and reversing vice, in horizontal section above reversing gears; and Fig. is a pers ective view of thedevice arranged to pu the pumping rods.

5 In these views 1 is the well tubing, 2 the casing, 3 the casing head, 4 the cap for the casing head, 5 the stufling box, and 6 the polish rod, which is coupled to the sucker rod 7 inside the well tubing. These parts are permanently em loyed in all oil wells and remain practica ly unchanged.

The attached parts for operating the well comprise the motor 8 and provided with a shaft 9 upon which are loosely sleeved the miter gears 10 and 11 spaced apart to include between them the friction cones 12 and 13, which engage alternately with conical recesses in the inner faces of the miter gears. A central clutch "14 and clutch lever 15 serve to alternately engage. these cones and gears. Above these gears 10 and 11 and engaging with them is the miter gear 16 upon the vertical shaft 17, upon the upper extremity of which is secured a pinion 18. The vertical shaft 17 is closely adjacent to the polish rod 6. Upon the polish rod at the upper end is tightly secured the sleeve 19 which is screw threaded, and upon the threaded sleeve is mounted the spur gear 21 which is internally threaded to provide a nut-through which the sleeve moves longitudinally. This gear nut, intermeshes with the pinion 18 and is driven thereby. In this manner a reciprocating movement is given to the polish rod since by rapid revolution in one direction the nut will raise the sleeve to the limit of the stroke, and by the reverse movement of the nut the sleeve 'will be lowered to the length of the stroke. This alternating movement is con'stantly'repeated by means of a shifting device controlled by an arm upon the polish rod so as to throw the clutch and reverse the miter gear movement at the end of each ump stroke. This shifting mechanism may he described as follows: The clutch lever 15 is moved to alternately en age the friction cones 12 or 13 on theclu'tc sleeve 14 with the miter gears 10 and 11 by means of any convenient automatic device mechanically connected with the polish shaft.

The particular form of device shown consists of a vertical shifting rod 22, adjacent to the polish rod, and, rovided with buttons 23 adjustably secure thereon. This rod is balanced so as not to fall by its own weight by means of the pedestal spring 24 at the lower end. An arm 25 'adjustably fixed upon the polish rod so as to regulate the len th. of the stroke engages these buttons an moves the rod to shift the clutch.

Intermediate mechanism to accom lish this purpose is shown to consist of a ti ting shaft 26 adapted to rotate in a sleeve .27 which is pivoted upon the clutch lever 15.

65 This shaft is pivoted at one end at 28 to the shifting rod 22, and is provided with friction rollers 29 and 30 which engage in turn with a horizontal 'dlSk 31 as the end of the shaft aflixed to the shifting rod is raised or lowered. This disk is driven by means of a vertical disk 32 secured upon the clutch sleeve 14. Thus a rapid rotary movement is given the shaft 26. At the outer end of this shaft is shown a screw 33, and a nut 34 thereon. A bell crank35 and link 36 connect'this nut 34 with the outer end of the clutch lever 15. The action of this device is simple and eflicientwhen the shifting rod is lowered it lowers the inner end of the small shaft 26, and brings the friction roller 29 into engagement with the always rotating, disk 31, this rotates the shaft v26 in one direction. The nut 34 moves upon the screw 33 and the bell crank pulls the clutch lever 15 to en age one of the cones of the clutch with one o the reversing gears.

When the shifting rod is raised the friction roller 30 engages the disk 31 on the opposite side of the center thereof, the small shaft 26 is rotated in the other direction. The screw 33 moves the nut and bell crank in the opposite direction and the clutch lever is thrown to bring the other cone into engagement with the second reversing gear. Since the shaft 26 must be flexible to permit of lift- 5 ing and lowering the end attached to the shifting rod, the shaft is divided and toggles 35 and 36 and a sleeved portion 37 are employed to give freedom of movement. A bearing38 supports the outer end of the 1 0 shaft. The dis 31 is vertically adjustable by means of the set screw 39 beneath it. In this manner the reversal of the miter gears 10 and 11 to change the direction of travel of the pumping rod is controlled automat- I05 ically by the rod itself. a i

It is of course of important that the pump and polish rods should not turn as the gear nut turns upon the sleeve screw, hence to avoid all possibility of such a mishap, the 110 arms 35 are secured to the extremities of the screw sleeve, and vertical rods 36 con nect'them. These rods ass through guides 37 upon the frame 38 o the machine.

To obtain simplicity of construction and 15 applicability of the device to any well, the frame 38 and the motor and miter gearing are all mounted upon the platform 39 which can be as shown secured to or integral with the cap 4 of the well casing head. Hence I20 all parts of the device are compact and portable and can be readily placed in position wherever the location of the well may be.

A field of wells, each provided with the above described apparatus can be connected I 5 by means of circuit wires with a central or more distant ower station, and operated singly or in unlson until exhausted, without dependence u on one another, and without disarranging t e balance of the power in any 3 way, if some of the previously to exhausting all of them.

An important feature of the invention is shown in the hoisting Windlass 41 geared to the pinion 42 upon the motor shaft. The object of which is to provide means for hoisting the sucker rods or tubing out of the well or for operation has heretofore required separate apparatus laboriously brought to the well,

involving much loss of time and labor, but with the power directly applied to each well,

the operation of pulling it requires little time and labor. The hoisting rope can be attached to any convenient gin pole or derrick, not forming a feature of this invention.

For convenience in pulling the frame of the machine is hin ed at 44 so that the upper portion can be f0 (led back after removing the screw sleeve and gear nut, and pinion and loosening the stay rod 45, after which the tubing or rods can be readily pulled. A clutch 46 and lever 47 is used to throw the pinion 42 into engagement with the gear 48 upon the Windlass shaft 49, and a brake 50 is shown to control the hoisting drum.

The entire machine is compact and especially suited to thgllpeculiar uses of the oil field. Its use for p ing rods or tubing is graphically illustrated in Fig. 5 where the uper portion of the frame 1s shown thrown wells become exhausted I ley 55 at pling tongs pulling the well as it is turned. This horse power back to release the tubin and a gin pole 51 is raised with which to pu l the tubing. Here around the drum, is shown. over pulleys 53 and 54, and over pulthe top of the gin pole. The end is then attached in the usual manner by grap- 56 to the tubing. Heretofore hasbeen employed for this purpose and from the construction of the devices employed many men and horses have passer been killed.

I claim:

The combination with the casing, tubing and pumping rod of a well of a platform secured to said casing, a motor and shaft thereon, a hoisting drum on the platform, geared connections with said drum and motor shaft, a frame upon the platform through the upper portion, of which the pumping rod passes, driving mechanism operatively and automatically connecting the movements of the pumping rod, and motor shaft the said frame being hinged for temporary removal from enga ement with said pumping rod, substantia ly as described.

In testimony whereof I alliX my hand this 12th day of May 1905.

SAMUEL LIPPER'IT.

Witnesses:

WM. M. MONROE, GEO. S. COLE. 

